Lights, retina action!

The science of vision touches many different disciplines. All the physical properties of light are important. The physical chemistry and biochemistry of rods and cones tells us how light is captured and turned into neural signals, and the neuroanatomy and physiology of the different retinal layers give insight into the way that electrical signals are manipulated in ways that are useful for perception and action, the goals of the whole process.

Robert Rodiek is primarily a neuroanatomist, and his enthusiasm for the retina is clear from the beautiful illustrations. Nevertheless he tackles all the physical and chemical problems involved in the early stages of vision with clarity and verve. The result is a fine exposition of all one needs to know about the way the retina deals with light, a lucid and unique work of reference for students at all levels.

Michael F. Land is professor of neurobiology, University of Sussex.